University President Ed Ray announced the decision to cancel classes and activities about 10 p.m. Thursday. A release from the university cited "continued flooding, road closures and possible additional dangerous conditions as rivers and creeks crest during the next 12 to 24 hours."

Both Benton County and the city of Corvallis have declared states of emergency in the wake of Thursday's storm.

Updated information about the closure can be found by calling 541-737-8000 or online.